MagPortal.com   Clustify - document clustering
 Home  |  Newsletter  |  My Articles  |  My Account  |  Help 

Location: Categories / Society, Politics & Culture / Archaeology & Paleontology

Magazine articles on archaeology, paleontology, artifacts, prehistoric origins.
Old Articles: <Older 21-30 Newer>
Geotimes
June 2003
Greg Peterson
Cannibal dinosaurs During the Late Cretaceous, a predatory dinosaur named Majungatholus atopus roamed the plains of what is now northwestern Madagascar. A study in the April 3 Nature now suggests that when times got tough, and food sources became scarce, the dinosaur turned to its own kind for a meal. mark for My Articles 14 similar articles
Geotimes
June 2003
Sara Pratt
Amazon's ancient rain forest Paleoclimatologists have often suggested that the Amazon Basin was an arid savanna during the Pleistocene about 2 million years ago. Now, researchers have found that lowland tropical rainforest likely dominated the region at that time, just as it does today. mark for My Articles 16 similar articles
Geotimes
May 2003
Greg Peterson
Mayan drought Geological studies of sediment show that from 750 to 950 A.D., a time when the Classic Maya civilization collapsed, the Cariaco Basin region suffered a century-long dry period, punctuated by four major droughts, adding strain to the disintegrating empire. mark for My Articles 8 similar articles
Geotimes
April 2003
Dave Lawrence
Microfossil lineages support sloshy snowball Earth Whether Earth's surface was completely frozen over during the glaciations about 900 to 540 million years ago (a hardball) or experienced open water near the equator (a slushball) is up for debate. Recent research now suggests that slushball conditions were more likely. mark for My Articles 29 similar articles
Geotimes
April 2003
Lisa M. Pinsker
Seeing Chicxulub A new map of the Yucatan from NASA shows for the first time the 180-kilometer wide crater left behind after a giant impact that researchers believe killed the dinosaurs 65 million years ago. mark for My Articles 21 similar articles
Geotimes
April 2003
Devonian dentistry According to standard theory, placoderms lacked true teeth. Instead, bony plates, sometimes razor-edged and self-sharpening, lined their jaws and captured dinner. A study in the Feb. 21 Science turns this view on its head, indicating that an advanced group of placoderms, called Arthrodira, did have teeth. mark for My Articles 14 similar articles
Reason
February 2003
Charles Paul Freund
Artifact: Loot Box This plain-looking limestone box carries the Aramaic inscription, "James, son of Joseph, brother of Jesus." The 20-inch-long box, which once held bones, appears to date from the first century A.D., and may well refer to Jesus of Nazareth. mark for My Articles 11 similar articles
Reason
December 2002
Brian Doherty
Bones of Contention Free Kennewick Man!: An August decision by a federal magistrate in Oregon means a victory for scientific research over tribal identity politics. mark for My Articles 13 similar articles
Science News
November 23, 2002
Ivars Peterson
Ancient Infinities An ancient manuscript long hidden from public view has provided significant, new insights into the way Archimedes did his mathematical work more than 2,000 years ago. mark for My Articles 5 similar articles
Outside
October 2002
Bill Vaughn
The Snow on the Sweetgrass For newcomers -- meaning most of us -- they are merely picturesque. But for Native Americans, the sacred places of the Great Plains and Northern Rockies are alive with centuries of memory and meaning -- and something much, much bigger. mark for My Articles 57 similar articles
<Older 21-30 Newer>    Return to current articles.